Neuro CVA Flashcards
2 types of stroke
- Ischemic
2. Hemorrhagic
3 most common locations for lesions
- Origin of the common carotid artery
- Main bifurcation of the middle cerebral artery
- Junction of the vertebral arteries with the basilar artery
MCA incidence
Most commonly involved
MCA sx
CL hemiplegia, mostly UE involvement, loss of sensation primarily in arm and face, homonymous hemianopsia common
MCA sx if infarction in dominant L hemisphere
Aphasia, apraxia
MCA sx if in main stem
Global aphasia
ACA incidence
Rare
ACA sx
LE more freq affected resulting in CL hemiplegia and sensory loss. Mental confusion, aphasia, CL neglect if involvement extensive on the dominant side
PCA sx
Persistent pain syndrome of CL pain and temp sensory loss can occur. Homonymous hemianopsia, aphasia, and thalamic pain syndrome also can result from occlusion
Vertebral-basilar artery prognosis
Often results in death from the edema associated with the infarct
Vertebral-basilar artery sx
If lesion affects the pons: quadripresis and bulbar palsy or a “locked-in” state whereby the pt can communicate only by blinking. Other sx can include vertigo, coma, diplopia, nausea, dysphagia, ataxia
Anterior inferior cerebellar sx
Unilateral deafness, CL loss of pain and temp, paresis of lateral gaze, unilateral Horner’s syndrome, ataxia, vertigo, nystagmus
Superior cerebellar sx
Severe ataxia, dysarthria, dysmetria, CL loss pain and temp
Posterior inferior cerebellar sx
Wallenberg’s syndrome (vertigo, nausea, hoarseness, dysphagia, ptosis, decreased impairment of sensation in the IP face and CL torso and limbs. Horner’s may also appear
Stages of recovery following stroke - Early/Flaccid
Flaccidity is present early, often with no voluntary movement